AFP is backed by the billionaire Koch brothers, who made their fortunes in the fossil fuel industry.
Conservatives and industry oppose putting a price on carbon, as they say would slow economic activity, raise the cost of energy-intensive products and increase electricity rates.
On the other hand, many liberal Democrats, public health groups and environmental organizations support a carbon tax. They say it would properly account for environmental, property and health damage caused by carbon emissions, as well as mitigate climate change.
The idea of a carbon tax has generated plenty of Capitol Hill buzz, but not much substance.
Some conservative groups, such as the American Enterprise Institute, have floated it as a way to generate more revenues for the Treasury. It’s also a favorite for climate activists, as it would likely greatly reduce greenhouse gas emissions.
A carbon tax has surfaced in a handful of policy papers as a recommendation for congressional tax-writing panels as they dive into a potential overhaul of the federal tax code.
Passing such a measure in the current Congress, however, is largely a pipe dream for its advocates.
The GOP-controlled House wouldn’t touch a carbon tax, and a majority of the Senate — though not Begich, Udall or Hagan — opposed the concept in a March vote on the nonbinding Senate Democratic budget proposal.
On top of that, the Obama administration has said it would not pursue a carbon tax.
— This story was updated at 10:50 a.m. on June 6.